azredhawk44
Moderator
I've got my M14 sighted in pretty well with a load that works for me. A little fine tuning to do still... deciding 1/2 minute one way or the other for elevation and a minute one way or the other on the windage...
But, the end result is I'm shooting 10-shot groups, slung from prone, single-loading and breaking position for each shot, that are about 3.5 MOA. Taking about 5 minutes to get that 10-shot group.
There's a distinct "walking" effect I can see.
I have yet to shoot just a 5 shot group to see how tight they are, but if I just pick five out of those 10 that are walking, on one extreme edge or the other, a 5-shot group for me is about 2 MOA, slung, single-loading.
I think part of the walking string is my eyes fatiguing. I'm using a 6 o'clock hold.
Can heat mirage off the barrel "trick" me and throw my shots off? I don't see any extreme mirage like if I heat up my Mosin 91/30... but I imagine the degree needed to knock a minute of accuracy off is pretty minor.
I'm shooting at an SR target just because the aiming black is about the same size for my 6 o'clock hold as on an MR-52 target.
Question 1: What size group do most HP competitors keep, in a 20 round string, on the MR-52 target and slowfire prone stage?
Question 2: Am I getting heat mirage issues between the sights, off the barrel? Or, is this more likely to be wind that I'm just not detecting, gusting lightly downrange but unfelt to me on the firing line? I didn't see any mirage-blow and the wind was coming from behind me, negligible left/right effect.
The strings are moving predominantly left-right. I find that shooting at a 4MOA target with my Mosin with a hot barrel that gives a flagrant mirage, I tend to hit to the right of the target all the time. I'm seeing a similar but less pronounced effect with the M14 here and I'm hoping for confirmation or other enlightenment.
Using a turner 1907 leather loop sling on a GI fiberglass-stocked Armscorp M14 with a Criterion 1:12 barrel, Hornady 168gr BTHP handloads. Elbow is under the receiver, using a surplus shooting jacket and a $1 home depot gardening glove for a support hand glove.
But, the end result is I'm shooting 10-shot groups, slung from prone, single-loading and breaking position for each shot, that are about 3.5 MOA. Taking about 5 minutes to get that 10-shot group.
There's a distinct "walking" effect I can see.
I have yet to shoot just a 5 shot group to see how tight they are, but if I just pick five out of those 10 that are walking, on one extreme edge or the other, a 5-shot group for me is about 2 MOA, slung, single-loading.
I think part of the walking string is my eyes fatiguing. I'm using a 6 o'clock hold.
Can heat mirage off the barrel "trick" me and throw my shots off? I don't see any extreme mirage like if I heat up my Mosin 91/30... but I imagine the degree needed to knock a minute of accuracy off is pretty minor.
I'm shooting at an SR target just because the aiming black is about the same size for my 6 o'clock hold as on an MR-52 target.
Question 1: What size group do most HP competitors keep, in a 20 round string, on the MR-52 target and slowfire prone stage?
Question 2: Am I getting heat mirage issues between the sights, off the barrel? Or, is this more likely to be wind that I'm just not detecting, gusting lightly downrange but unfelt to me on the firing line? I didn't see any mirage-blow and the wind was coming from behind me, negligible left/right effect.
The strings are moving predominantly left-right. I find that shooting at a 4MOA target with my Mosin with a hot barrel that gives a flagrant mirage, I tend to hit to the right of the target all the time. I'm seeing a similar but less pronounced effect with the M14 here and I'm hoping for confirmation or other enlightenment.
Using a turner 1907 leather loop sling on a GI fiberglass-stocked Armscorp M14 with a Criterion 1:12 barrel, Hornady 168gr BTHP handloads. Elbow is under the receiver, using a surplus shooting jacket and a $1 home depot gardening glove for a support hand glove.